Analysis of coal face stability of lower coal seam under repeated mining in close coal seams group
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
DOI: 10.1038/s41598-021-04410-5
Abstract: Aiming at the problem of coal face failure of lower coal seam under the influence of repeated mining in close coal seams, with the working face 17,101 as a background, the coal samples mechanics test… read more here.
Keywords: face; face failure; repeated mining; coal face ... See more keywords
Overburden failure characteristics and fracture evolution rule under repeated mining with multiple key strata control
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DOI: 10.1038/s41598-025-14068-y
Abstract: To master the overburden structure failure and fracture evolution law under multi-key stratum control during repeated mining in coal seams, this study takes the superimposed mining faces of 6# and 7# coal seams in Xinjiang… read more here.
Keywords: repeated mining; fracture; key strata; control ... See more keywords
Stability control of roadway surrounding rocks under repeated mining: a case study.
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DOI: 10.1038/s41598-025-29030-1
Abstract: Repeated mining makes the deformation and failure of roadway surrounding rocks more complex than those under single-seam conditions. To address the large deformation and support failure in the 40,111 roadway of the Dafosi Coal Mine,… read more here.
Keywords: repeated mining; roadway surrounding; roadway; surrounding rocks ... See more keywords
Mechanism of stress transmission and feasibility of mining the lower coal seam under repeated mining in close-multiple coal seams
Sign Up to like & getrecommendations! Published in 2024 at "Frontiers in Earth Science"
DOI: 10.3389/feart.2024.1361749
Abstract: Mining in an upper coal seam results in the redistribution of vertical stress within a lower coal seam until a new equilibrium state is attained. Close-multiple coal seams mining faces the occurrence of multi-goafs and… read more here.
Keywords: coal seam; repeated mining; lower coal; stress ... See more keywords
Study on the Evolution Law of Overburden Breaking Angle under Repeated Mining and the Application of Roof Pressure Relief
Sign Up to like & getrecommendations! Published in 2019 at "Energies"
DOI: 10.3390/en12234513
Abstract: Aiming at the serious problems caused by coal mine mining activities causing the rock burst accidents, this paper is based on rock mechanics and material mechanics to establish the key layer breaking by the double-key… read more here.
Keywords: repeated mining; key layer; breaking angle; coal ... See more keywords